If you are ready to refine these estimates, there are resources that will help you do so.

One is the daily Lawn Watering figure printed in the Arizona Republic above the map of the United States on the weather page.

The Arizona Meteorological Network's worksheets are another. The network measures evaporative water loss rates at stations around the state. Use figures from Waddell or Litchfield to compute how long to run your irrigation.

Protect Your Investment

They're okay! These plants protect themselves during dry spells by dropping their leaves.